augustine



B. F. AUGUSTINE.

ROTARY HYDROCARBON ENGINE.

APPLICATION FILED AUG. 15. 19!].

Patented Sept. 16, 1919.

'6 SHEETSSHEET I.

B. F. AUGUSTINE.

ROTARY HYDROCABBON ENGINE.

APPLICATION HLED AUG-l5. I917.

Patented Sept. 16, 1919.

6 SHEETS-SHET 2.

B. F. AUGUSTINE. ROTARY HYDROCARBON ENGINE.

- APPLICATION FILED-AUG. I5. 1917.

1,3 1 6,346 Patented Sept. 16, 1919.

6 SHEETS-SHEET 4.

B. F. AUGUSTINE.

ROTARY HYDROCARBON ENGINE. APPLICATION FILED AUG. us. 19!?- 1 ,3 1 6, 346 Patentedsept. 16, 1919.

SSHEETS-SHEET 5- B. F. AUGUSTINE.

ROTARY HYDROCARBON ENGINE.

APPLICATION man AUG-I5. I917.

Patented Sept. 16, 1919.

6 SHEETS-SHEET 6.

UNITED eras n OFFICE.

BENJAMIN F. AUGUSTINE, 0F BUFFALO, NEW Y OBK.

. ROTARY HYDROCABBON-ENGINE.

Specification of Letters Patent.

Application filed August 15, 1917. Serial No. 186,417.

improvements in hydrocarbon engines, and

more particularly to an engine of this character which is adapted to use heavy hydrocarbon such as kerosene, or the like. v

An object of the invention is to provide a hydrocarbon engine of the above type, wherein the'heat of combustion within the cylinders may be utilized for vaporizing a hydrocarbon liquid fuel, prior to the admis sion of the same to the expansionchamber of the cylinders.

Another object of the invention is to provide an engine of the above type wherein the piston is provided with a vaporizin chamber adapted to receive'the hydrocar on liquid fuel and gasify the same, prior to the admission of the gasified fuel to the expan-.

sion chamber of the cylinders.

A still further object of the invention is to,

provide an engine of the above character wherein a blast of air is used for driving or transferring the gasified fuel from the chamber in the piston to the fuel supply chamber.

A still further object of the invention is to provide means whereby the exhaust gases may be utilized for further heating and gasifying thefuel in the fuel supply chamber prior to the admission of the same to the expansion chamber of the cylinders.

Another object of the invention is to pro-' ,and also for transferring the fuel to a-fuel supply chamber.

more ject of the in ention 15 to provide a rotary engine ofthe above character wherein the liquid fuelis supplied through a pipe arranged so that the centrifugal force acting on the fuel aids in carrying the fuel to the vaporizing means. l

Another object of the invention is, to pro vide a rotary engine of thelabove-type wherein the liquid fuel is gasified in a chamber formed in one of the operating pistons and wherein a pumping device is aso'ciated with said piston for pumping air' through the vaporizing chamber for forcing or transferring each individual chargeto a fuel supply chamber.

These and other objects will be'obvious, and will in part be more fully disclosed. p

In the drawings which show by way of illustration one embodiment of the inven' tion:

Figure 1 is a longitudinal sectional view of an engine embodying the invention, the section being taken through the cylinders having1 means for gasifying the hydrocarbon fue Fig. 2 is a similar view through the 'c'ylin-. ders having means to pump air only;

Fig. 3 is a view partly in end elevation and partly in section through one of the cylinders having intake ports and through one of the cylinders having exhaust pprts;

Fig. 4 is a view of one of the end heads as viewed from the inner side thereof;

5 is an end view .of the engine casing; Fig. 6 is a transverse sectional View on the line 6-6. of Fig. 1;

Fig. 7 is a sectional view on the line 77' of Fig. 2;

Fig. 8 is a view partly in section and partly in side elevationof one end of the engine casing-showing the manner of han- .dling the exhaust ases Fig. 9 is a side view of the shaft showing the balancingplate attached thereto;

Fig. 10 is an end view of the same;

Fig. 11 is .a view partly 'in end elevation and partly in section showing theair ports in the extension carried by the shaft;

F g- 12 is a ional view on the. line 12- 12 of Fig. 9;

Patented Sept.16, 1919. I

on of the shaft-and the enlargement usion formed therein. mvcntionconsists broadly in a casing mounted to rotate in bearings and provided with a plurality of radially disposed cylin' ders. These cylinders are preferably ar ranged in pairs. The expansion chambers in each pair of cylinders are connected so as to form in effect, a single expansion chamber. Each cylinder provided with a piston. One of the cylinders is provided with fuel intake ports and also with air intake ports, and these ports are controlled by the piston. of that cylinder. The other cylinder is provided with exhaust ports and these exhaust ports are controlled by the piston of this other cylinder.

The piston controlling the exhaust ports is in the form of a sleeve closed at both ends. The chamber formed by this sleeve is utilized as a yztpor rig chamber for the hydro-carbon fuel which is to be used in the engine. Associated with this piston is a pump piston which draws in air and this air is used for forcing the vaporized fuel gases from the chamber in the piston around to a supply chamber formed in the engine casing. The supply chamber in the ei'igine casing is also whollyor partially surrounded by a chamber which receives the exhaust gases; so that the heat from the exhaust gases may be absorbed by the fuel gases,

thus thoroughly gesifying the fuel and transforming this heat into power. The crank casing serves "s an air supply chamher and air is sup; d thereto by suitable means.

Referring more in detail to the drawings my improved hydrocarbon engine consists of a casing 1 which is provided with heads 2 and 3. The head 2 has a projecting shaft l which is mounted to rotate in a suitable bearing. These heads close the engine casmg. The engine casing provided with six pairs of cyllnoers as shown in the present embodiment of the invention. One of the cylinders is indicated 5, while the other is indicated at 6. As shown in the drawings, the cylinder 5 is of considerable larger diameter than the cylinder t3. This may be varied, however, to suit desired con ditions. The two cylinders are connected an end cap 7 which is formed with a passage way 8. This passage way serves to connect the expansion chambers of the two cylinders so as to form in crTect a sin le expansion chamber. Located in the cylinder 5 is a piston 9. A. pitxuan. 10 is con-- nected to this piston, and this pit-man is in turn connected through a suitable bearing with the crank 11 on a fixed shaft 12. Located in the cylinder 6 is a piston 13. This pis cn 13 is connected to a pitman 14:, and

13 is a longitudinal sectional view of the pitman lei coop ates with a crank on the shaft The crank 11 is greater eccentricity than the crank 15. so that the piston 1 has a shorter stroke than the piston 9.

The cylinder 5 is provided with a series of fuel intake ports 1.6. Tiese fuel intake ports are connected with passages 17 which in turn are connected with a fuel supply chamber 18. The fuel supply chamber is formed by an inner cylindrical partition gal and an outer cyl ndr cal partition 20. between the outer cylindrical partition and the outer wall of the casing a chamber which is adapted to receive the exhapst gases. The cylinder 5 is a so proyided Wltli air itake ports The cars mg is provided with channels and when the cylinder in place it forms with these .ge ways leading from the air 0 the crank casing M that air w v through these pa sage ways irom the crank casing to the intake ports and thence to the cylinder.

The cylinder 6 is provided with exhaust ports 24. Surrounding each cylinder 6 is a casing which receives the exhaust gases from the exhaust ports. A pipe 26 connects adjacent casings and this pipe is connected to the casing at the opening 27 in the outer wall which leads to the chamber 21 so that the exhaustgases from. the cylin s 6 pass into the exhaust chamber The exhaust gases from the char Fig. 53) to a bonnet 29 which in turn is p connected to a single exhaust plpe.

It Wlll be not-ed that the cylinder 6 is a relatively short cylinder. At the inner end of this cylindeand in tandem therewith, 1s a pump cylinder 30. This pump cvlinder is of much larger diameter than the cylinder 6. The piston 13 as above noted, is in the form of a sleeve closed at its outer end by thin wall indicated at 31, in the draw' Atthe inner end of the piston 13 there is a second piston 32 which coliperatcs with the pump cylinder 30. These two pistons 13 and 32 are formed in tandem and are connected to the pit-man 14.

As above noted, there are six pairs of cylinders. and associated with each pair of cylinders there is. a pump cylinder. Three or the pump cylinders operate to pump air only to the crank casing; while the other three pump cylinders operate to pump air and fuel to the fuel supply chamber. In

Fig. 2 of the drawings, I have shown the pump cylinders which supply air to the Ar 2i are led through pipes 28 (see i its stroke.

'37 (see Fig. 13) which is adapted to register with the passage 34. There are openings 38 which lead from the port 37 to the outer face of the enlargement orextension 36 and these openings are constantly in register' with an annular chamber 39, whlch is connected by means of openings 40 with the atmosphere. When the parts are in the position shown in Fig.2, air is being drawn in through the passage 34v into the pump :cylinder by the upper pump, the piston'of which is just reaching the end of On the opposite side of the enlargement or extension. 36 from the port 37 is a port 41 (see Fig. 13), which extends down into the'extension and connects with a lateral passage 42 which leads 'to'the nner face of this extension and connects with the crank casing. When the passage 34 is in register with this port 41, air is transferred from the pumps into the crank cas ing as shown by the lower pump in Fig. 2 which is just finishing its stroke.

Three of the pump cylinders operate to pump air and fuel. In Fig.1 of the drawings, I have. shown a section throi h. two

of these cylinders. Located within the chamber inthe piston 13, is a hollow core 43 having ribs 44 which extend across the sleeve forming a partition, thus dividing the chamber in the piston into two parts. The partition terminates short ,of the outer end of the sleeve so that the two parts of the chamber are thus connected. The fuel which, as above noted, is a heavy hydrocarbon such as kerosene, is carried to the engine through a pipe 45. The shaft 12 is hollow, and the pipe 45 extends through this hollow shaft to the extreme forward end of the shaft. At the end of the shaft there is a chamber 46 into which the fuel is discharged A pump may be used if desired for forcing the fuel through the pipe into this chamber. Ex-

tending radially from the chamber 40, is

a series of passages 47 one for each pair of cylinders pumping gas and air. A pipe. 48 is connected to each passage and extends along the head of the engine casing and across the outer wall thereof to a cylinder 6. Said pipe connects with a passage way 49 which opens through the Wall of a collar 50 operating to hold the cylinder 6 in place and in effect, forming an extension of said cylinder. A packing 50 between the collar and the end of the cylinders prelBEilittgS. The piston 13 is formed with a port 51 which is adapted to register wlth (See Fig. 1).

the passage 49 When-the piston is in position shown at the upper p-art of Fig. 1. At this time the cylinder is moved outwardly to its extrem 'ter position. The centrifugal force o the fuel out. through the pipe 48 and when this port 51is in register w th the passage 49" a charge of liquid fuel w ll flow into the chamber in the piston and w1ll be carried by centrifugal force out agalnstthe inner wall of the head of the piston. The plate 31 forminglthe head of the piston 1s comparatively thin, and will become extremely hot. The liouid fuel thrown against this hot plate will be quickly vaporized, and turned into a dry gas.

the port 51,:there is an outlet port 52 which is adapted to register with a passage 53 formed in the engine casing. This passage communicates with a passage 54 formed in the head 3 of the engine casing. The passage 54 is adapted to register with a port 55 (Fig. 13), formed in the enlargement or extension 36. This port extends down through On the opposite side of the piston from.

the .fixed shaft and communicates .with 'a chamber 56 extending lengthwise of the fixed shaft. This is the chamber in which thepipe 45 is located When the ports are inthe position shown in Fig. 1, the upper pump pistion 32 is just reachingthe inner end of its stroke. In other words, the cylinder has moved outwardly to its extreme position. While the piston is moving to this position the passage 54 has been in register with the port 55 and air is drawn in through the hollow shaft and the passage 54 into the pump cylinders. Just as the piston reaches this position the fuel port is opened, as above noted, and a supply of fuel is admitted to -a port 57, which connects the passage 55- with a'passage- 58 and this-passage 58 leads to the fuel supply chamber 18. There is a the hollow piston. As the engine rotates this port 59 which connects the pump cylinderwith this passage 54. The piston 13 is provided with a port 60 which connects the pump cylinder with the chamber inside said piston, and also with a port 61 likewise con-x necting the pump cylinder with the chaniber inside the piston. The port 61 is adapt ed to register with the port 52, when the piston is'at the outer end of its stroke or at the position shown at the lower part of Fig. 1. .The pump piston drawsin air from the hollow shaft as above noted. The airdrawn into the pump cylinder during the first part of the pumping stroke is transferred through the port 59 and the passage 54 to the fuel supply chamber. Thepump' piston 32 cuts off the port 59 before the pump piston finishes its stroke. The further movement of the pump piston after this port 59 is out 01f causes the air remaining in the pump cylinder to pass through the portGO over the top of the partition in the chamber in the piston and out through the port 52 carrying with it the gasified fuel and this air and gasified fuel is forced by the pump around into the fuel supply chamber.

' As above stated, only three of the pump cylinders are connected to the fuel supply.

pipe, and pump fuel to the fuel supply chamber. The other three pumps, pump air only. They are similarly constructed however, to the pistons pumping fuel, with the result at the end of the stroke of the air pumping cylinders air is forced through the hollow piston and'abou't the inner-wall of the piston head, thus cooling the same. I

The ports in the enlargement or extension 36 are of sufiicient length so that the pump cylinders pumping fuel through their cooperative action draw in air continuously and supply air and fuel continuously to the fuel supply chamber, it being understood of course, that each pump cylinder is cut off as the pump piston passes the dead center and is inactive so as to prevent any bank discharge of the fuel gases from the fuel supply chamber. The pump cylinders are so proportioned as to supply the proper volume of air and fuel gas for the six pairs of cylinders. The fuel gas which is vaporized in the piston is further heated and turned into an extremely dry as? by reason of the fact that the fuel supp y chamber is surrounded and supply air continuously to the crank casing. Neither the air nor the gas is placed under compression in the pumps nor do the pumps work under vacuum. The pumps operate to transfer a volume of air and gas for the engine. The air delivered to the crank casing is placed under slight compression therein. The air also being drawn from the atmosphere is cool and will absorb heat units from theshaft and bearings, also from the inner parts of the engine, which transfers these heat units into work.

It will be noted that the pistons 13' and 32 are connected to the same pitman 14 and this pitman performs three functions;'it-opcrates the piston 32 to draw in air and to compress the air and it also becomes the abutment for the piston 13 on the expansion of the gases.

The exhaust ports are uncovered by the piston 13 after the'fuel gases have been fully expanded. In this connection it will he noted that the pistons are at the opposite ends of the expansion chamber and operate in multiple, that is, move simultaneously under the power of expanding gases and therefore an extreme expansion of the gases is obtained. As soon as these exhaust ports are partly opened, the pressure in the cylinders is relieved, then the air intake ports begin to open,- permitting fresh air in the crank casing to rush into the cylinder 5 completely scavengingthe cylinders and forcing the burnt gases out through the exhaust ports. After a small portion of air has been admitted and the burnt gases have been forced away from the region adjacent the head of the piston 9, then the fuel intake ports are'opened permitting the dry gasified fuel to enter with the remainder of the air 7 hydrocarbon fuel may be cutoff, if desired.

The gasolene will be drawn into the pump cylinders and delivered by the same to the fuel' supply chamber, wherein it will be thoroughly gasified and then admitted to the cylinders. It will be noted that a large portion of the air admitted to the cylinders is received into the crank casing, and while this air absorbs some of the heat of the inner parts of the engine it is comparatively cool when it passes into the cylinders so that a very large volume of air may he quickly admitted to the cylinders and the fuel gas is mixed with this relatively large volume'of air in the cylinders. V

As above noted, the. crank casing is under slight compression and in order to balance the parts of the engine against this pressure, I have provided a balance plate 62 which is attached to the end of the shaft and seated against the head 20f the casing. This bal-: ance plate is of substantially the same area as the enlargement or'extension 36 formed in the shaft so that the endwise pressure of the air against one end plate of the engine casing will be substantially balanced by the endwise pressure of the air against the other end plate.

leading'the wires for ignition purposes to the spark plugs, I-have provided the shaft 4- with the chamber 64: which extends through the bearing for this section of the shaft.

Openings 65 lead from the outer face of the shaft into the chamber 64:, Also openings 66 lead from the outer walliof the shaft to themner chamber 64 at -the other side of the bearing. The ignition wires extend through these openings 65, thence through the chamber (i l and the openings 66 and thence outwardly along the casing to the spark plugs. By this arrangement I am able to provide a very small commutator which may be located close to the shaft 4.

It is obvious that my improvements from certain aspects of the invention may be applied to other types of engines than the two by a thin wall, means for supplying liquid fuel to said chamber, and means for utilizing the vaporized fuel from said chamber for operating the engine.

2. A hydrocarbon engine including in combination a casing, a plurality of cylinders carried thereby, a piston for each cylinder, certain of aid pistons having a vaporizing chamber formed therein separated from the expansion chamber of the cylinder by a thin wall, means for supplying liquid fuel to saidchamber, and means for forcing air through the vaporizing chamber for driving a charge of vaporized fuel therefrom, and means for utilizing the vaporized fuel and air for operating the engine.

. 3. A hydrocarbon engine including in combination a casing, a plurality of cylinders carried thereby, a piston for each cylin-. der, certain of said pistons having a vaporizing chamber formed therein separated from the expansion chamber of the cylinder by a thin wall, means for supplying liquid fuel to said chamber, means forvforcing air a through the vaporizing chamber for driving a charge of vaporized fuel therefrom,

.means for utilizing the vaporized fuel and air for operating the engine, and means for furnishing air to the engine cylinders independently of the said vaporized fuel and air. v

4. A rotary hydrocarbon engine including a fixed'shaft having a crank, a casing rotating about said shaft,a'plural1ty of radially disposed cylinders carried by said casing, a piston for each cylinder, a pltman con necting each piston with the crank, a vaporizingichamber separated from the expansion chamber of certain of. the cylinders by a thin wall, and means for supplying liquid fuel to said vaporizing chamber, and means whereby the vaporizing fuel may be utilized for operating the engine.

5. A rotary hydracarbon engine includ ing a fixed shaft having a crank, a casing rotating about said shaft, a plurality of radially disposed cylinders carried by said casing, a piston for each cylinder, a pitman connecting each piston with the crank, a:

vaporizing chamber rotating Withthe casing and having an outer thin plate forming a part of the walls of the expansion chamber of the cylinder whereby the heat of combustion may be utilized to heat the vaporizing chamber, means for supplying said vaporizing ,chamber with a'liquid fuel, and

means for utilizing the vaporizing fuel the chamber for operating theengine.

6. A rotary hydrocarbon engine including in combination-a fixed shaft having a crank, a casing mounted to rotate about the shaft, a plurality of radially disposed'cylinders carried by the casing, a piston for each cylinder, a pitman connectingeach piston with the crank, certain of said pistons having vaporizing chambers formed vtherein separated from the expansion chamber of the cylinder by a thin plate, means for supplying liquid fuel to said chamber and against said thin plate, and means for utilizing the vaporized fuel gases in said chamber for operatingthe engine.

7. A rotary hydrocarbon engine including in combination a fixed shafthaving a.

cr'ank, a casing mounted to rotate about the shaft, a plurality of radially disposed cylinders carried by the casing, a piston for each cylinder, a pitman connecting each piston with the crank, certain of said pistonshavv ing vaporizing chambers formed therein separated from the expansion chamber of the cylinder by a thin plate, means'for supplying liquid fuelto said chamber and against said thin plate, means for forcing air through said vaporizing'chamber for driving the vaporized fuel therefrom, and

means for utilizing the vaporized fuel and air for operating the engine, 7

8. A rotary hydrocarbon engine including in combination a fixed 'shaft having a crank, a casing rotating about said shaft,

carried by said casing, apiston for each cylinder, a pitman connecting each piston to the crank, certain of-said pistons havdividing said chamber, meansfor intermit- 'tently admitting liquid fuel to'said chamber at one 'side of said partition whereby said fuel may be carried by centrifugal force against'saidthin plate, a fuel supply chains -a plurality of radially disposed cylinders" I I chamber to the fuel supply chamber.

9. A rotary hydrocarbon engine including in combination afixed shaft having a crank, a casing rotating about said shaft, a

plurality radially disposed cylinders carried'by said casing, a piston for each cylinder, a pitman connecting each piston to the crank,-certain of said pistons having a vaporizing chamber formed therein separated from the expansion chamber of the cylinder by a thin plate, a partition for dividing said chamber, means for intermittently admitting liquid fuel to said chamber at one side of saidpartition whereby said fuel may be carried by centrifugal force against said thin plate, a fuel supply chamber between the vaporizing chamber and the cylinders, and means for passing a blast of air through the vaporizing chamber after the fuel therein has been vaporized for transferring the vaporized fuel to the fuel supply chamber.

10. A rotary, hydrocarbon engine including in combination a fixed shaft having a crank, a casing mounted to rotate about the shaft, a plurality of radially disposed cylinders carried bythe casing, a piston for each cylinder, a pitman connecting each piston yvith the crank, certain of said pistons having vaporizing chamber formed therein separated from the expansion chamber of the cylinder by a thin plate, means for supplying liquid fuel to said chamber and against said thin plate, means for forcing air through said vaporizing chamber for driving the vaporized fuel therefrom and means for utilizing the vaporized fuel and air for operating the engine, said piston having an air intake port at one side of said partition, pumping means connected to said intake port for intermittently supplying air thereto, an outlet port on the other side of said partition and means connecting said outlet port to the fuel supply chamber.

11. A rotary hydrocarbon engine including in combination a fixed shaft having a crank, a casing mounted to rotate about the shaft, a plurality of radially disposed cylinders carried by the casing, a piston for each cylinder, a pitman connecting each piston with the crank, certain of said pistons having vaporizing chambers formed therein separated from the expansion chamber of the cylinder by a thin plate, means for supplying liquid fuel to said chamber and against said thin plate, means for forcing air through said vapomzmg chamber for driving the vaporized fuel therefrom and means for utilizing the vaporized fuel and air for operating the engine, said piston having an air intake port at one side of sa d partition, pumping means connected to said intake port for intermittently supplying air thereto, and outlet port on the other side of sa1d partition and means connecting said outlet port to the fuel supply chamber, and means for utilizing. the exhaust gases for heating the fuel supply chamber.

12. In a hydrocarbon engine including in combination a casing, a plurality of cylinders, a piston for each cylinder, a fuel supply chamber for supplying the chambers with a gasified'fuel, a vaporizing'chamber, means for intermittently admitting the liquid fuel to the vaporizing chamber, and means for intermittently passing a blast of air through said vaporizing chamber for conveying the vaporized fuel to the fuel supply chamber.

13. In a hydrocarbon engine including in combination a casing, a plurality of cylin ders, a piston for each cylinder, a fuel supply chamber for supplying the chambers With a gasified fuel, a vaporizing chamber,

means for intermittently admitting the liquid fuel to the vaporizing chamber, means for intermittently passing a blast of air through said vaporizing chamber for conveying the vaporized fuel to the fuel supply chamber, and means for utilizing the exhaust gases for heating the fuel supply a chamber.

14. A rotary hydrocarbon engine including in combination a fixed shaft having a crank, a casing mounted to rotate about said shaft, a plurality of radially disposed cylinders carried by said casing, a piston for each cylinder, a pitman connecting each piston With the crank, apump cylinder arranged in tandem With certain of said first named cylinders, a pump piston connected to and operated by the pitman for the piston of the cylinder, the piston 'of said cylinder having a vaporizing chamber formed therein, a liquid fuel supply passage, said piston having a port adapted to register with the passage to admit a charge of fuel, said piston having an air intake port and an air outlet port arranged whereby air may be forced by the pump piston through the vaporizing chamber for carrying the vaporized gases to the engine.

15. A rotary hydrocarbon engine including incombination a fixed shaft having a crank, a casing mounted to rotate about said shaft, a plurality of radially disposed cylinders carried by said casing, a piston for each' cylinder, a pitman connecting each piston with the crank, a pump cylinder arranged in tandem with certain of said first named cylinders, a pump piston connected to and operated by the pitman for the piston of the cylinder, the piston of said cylinder having a vaporizing chamber formed therein, a liquid fuel supply passage, said piston having a port adapted to register said casing, a piston for each cylinder, a

teases .With the passage to admit a charge of fuel,

a. fuel supply chamber, and-means whereby said pump piston may deliver air tothe fuel supply chamber, a portion of said air passing through the vaporizing chamber for conveying the vaporized fuel gases to said fuel supply chamber.

16. A rotary hydrocarbon engine including incom'bination, a casing, a fixed shaft havinga crank formed therein, a plurality of radially disposed cylinders carried by pitman' connecting each piston with the crank, a plurality of pump cylinders arranged in tandem with certain of said first named cylinders, a pump piston arranged in tandem with the piston for said cylinders and operating therewith, said casing having partitions forming an air chamber about the crank in the shaft, and a fuel supply chamber surrounding the air chamber, means whereby certain of said pump cyl nders may deliver air to the air chamber, means for vaporizing a liquid fuel and means for transferring said vaporized liquid fuel and air to the fuel supply chamber, means forv admitting air from the .air cham ber to the cylinders, and 'means for admit ting the vaporized fuel and air to the fuel supply chamber of each cylinder. I

17 Arotary gas engine including in com-- hination a fixed shaft, a casing rotating about said shaft, a plurality of radially dis posed pairs of, cylinders one cylinder of each pair having air intake ports and'fuel intake ports controlled by the piston of the cylinder, the other cylinder of each pair having exhaust ports controlled by the piston of said cylinder, a pumpcylinder arranged in tandem with each cylinder having exhaust ports, a pump piston connected to and moving with the piston for the cylinder having the exhaust ports, each of said last named cylinders having chambers formed therein, means for admitting liquid fuel to certain ofsaid chambers whereby it may be vapor ized by the heat from the cylinders, a fuel supply chamber, means whereby air may be delivered by the pumps associated with the pistons receiving the liquid fuel to the fuel suppl chamber, and a portion of said air passe through a vaporizing chamber for forcing the vaporized fuel gases to the fuel chamber.

fsupply chamber, and means for connecting the fuel intake ports to the fuel supply 18; A rotary gasengine including incom bination a fixed shaft, a. casing Iotating about said shaft, a plurality of radially disposed pairs of cylinders one cylinder of' each pair having air intake ports and fuel intakeports controlled by the pistonv of the cylinder, the. other cylinder of each pair having exhaust ports controlled by the pisthe admission of the fuel.

.ton of said cylinder, a pump cylinder arranged in tandem with each cylinder having exhaust ports, a pump piston connected to and moving with the piston for the cylinder having the exhaust ports, each of said last named cylinders having chambers formed therein, means for admitting liquid fuel to" ber, and means for-connecting the air intakeports with said air chamber.

19. A rotary gas engine'including in com bination a fixed shaft, 'a casing rotating about said shaft, a lurality of radially dis: posed pairs of cy inders one cylinder of each pair having air intake ports and fuel intake ports controlled by the piston of the cylinder, theother cylinder of each pair having exhaust ports controlled by the piston of said cylinder, a pump cylinder arranged 1n tandem with each cylinder having exhaust ports, a pump piston connected'to and moving with the piston for the cylinder having the exhaust ports, each of said last named cylinders having chambers formed therein, means for admitting liquid fuel to certain of said chambers whereby it may be vaporizedby the heat from the cylinders, a fuel supply chamber, means whereby air may be delivered by the pumps assm ciated with the pistons receiving the liquid fuel to the fuel supply chamber, and a portion of said air passed througha vaporizing chamber for forcing the vaporized fuel gases to the fuel supply chamber, means for connecting the fuel intake ports to the fuel supply chamber, said casing having an another pump cylinders deliverv air to the air chamber, and means for connecting the air intake ports with said air chamber, said air intake portsbeing arranged between the fuel intake ports and so proportioned as to admit air to the cylinder prior to and during 20. A rotary hydrocarbon engine includ ing in combination a fixed shaft having a through to the inner end thereof, a crank formed in said shaft, a casing rotating about said crank, a plurality of radially disposed cylinders carried by'said casing, a-vaporizing chamber associated with certain of said chamber about the. shaft means whereby the .chamber extending longitudinally there- 7 cylinders for receiving and vaporizing liquid fuel by the heat in the combustion charnher an oil pipe extending through the chamber in said shaft to the inner end thereof, a fuel chamber in the casing receiving the fuel from said pipe,- radially extending pipes connecting said fuel chamber with each of said vaporizing chambers whereby the centrifugal force acting on the liquid fuel will convey the same from the fuel chamber to the vaporizing chambers 21. A rotary engine including in combination a fixed shaft, a casing mounted to rotate about said shaft and having a projectingshaft mounted in bearing for supporting one side of said casing, a plurality of radially disposed cylinders carried by the casing, said shaft rotating with the casing having a chamber formed therein extending through the bearing, passages leading to the chamber at each side of the bearing,'ignition Wires extending through said-passage and through said'chamber and radially along the casing to the cylinder.

In testimon whereof I afiix'my signature.

BEL JAMIN F. AUGUSTINE. 

